[Haskell-cafe] singleton types

Günther Schmidt gue.schmidt at web.de
Sun Apr 25 10:57:15 EDT 2010


Hello,

HaskellDB makes extensive use of Singleton Types, both in its original 
version and the more recent one where it's using HList instead of the 
legacy implementation.

I wonder if it is possible, not considering feasibility for the moment, 
to implement HaskellDB *without* using Singleton Types.

Luke Palmer demonstrates in one blog post replacing type classes with 
data structures, so I wonder if this could also be applied in this setting.

Best regards

Günther




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